Similarly. I have over 20 years of professional experience. I've worked on embedded systems, and with mainframes. I've done (amongst other things) kernel development, compiler (& RTL) development, line-of-business, mobile, server, and web. Code I've written has a MAU on the order of 1% of humanity. Ask me about being a "full stack" developer :).

I've seen a lot. But the more I see, the more I find to see.